Cap for sealing containers



Oct. 6, 1931'. w. s. FISHER CAP FOR SEALING CONTAINERS Filed June 5, 1928 INVENTOR. Mann? 6. H5022? ATTORNEY- Patented Oct. 6, 1931 entra n stares PATENroFFrcEl.

WALTER S. FISHER, OF TOLEDO, OHIO, ASSIGNOR TO THE WILLYS-OVEBLAND COMPANY,

- OF TOLEDO, OHIO, A GOREORATIGN OF OHIO CAP FOB.- SEALING CONTAINERS.

Application filed June 5,

My invention relates to covers for concentric container bodies and it has specific application to automobile radiator caps which function both as a cover for the radiator core and the shell.

One object of the invention is to provide a cap which is resiliently maintained in engagement with the shell.

It is a further object of the invention to provide a radiator core and shell construction including a cap therefor in which the neck of the core is concealed within the aperture formed in the shell and whose cap fits snugly against the portion of the shell adjoining the aperture.

The invention likewise contemplates a construction whereby the tolerance between the shell and the neck of the core may be increased without impairing the sightliness of the structure.

It is a further object of the invention to provide a'cap which may be firmly secured to the neck of a core and which maintains itself in firm engagement with the shell.

ri These as well as other objects, will become more apparent upon consideration of the drawings and description specifically related thereto. of an embodiment of the invention which for certain purposes may be preferred.

The embodiments relate specifically to an automobile radiator core and shell structure the the principles underlying the invention are applicable to single container bodies.

Figure I is a sectional view through the cap and illustrates its relation with respect to a radiator shell and core.

Fig. II is a sectional view taken along line II-IIin Figure I.

V Fig. III is a sectional view similar to that illustrated in Figure I embodying certain modifications.

The precise manner of securing the capto the radiator core isnot important to this inventionand it is to be noted that Figures I and III differ substantially in the means for securing the cap to the core. Thus in practising the invention there is provided a radiator core 10 having an externally threaded neck portion 11 that is disposed within an aperture 12 formed in a radiator shell 13.

1928. Serial No. 283,114.

Only segmental portions of the shell and core are illustrated, the details of constructionof the remaining portions being of no consequence to a complete undertsanding of the present invention. Y I

The cap consists of an inner cover-15 which is internally threaded to'fitthe neck 11 of the core where it is held firmly in position A satisfactory fluid seal may be had by interposing a washer 16 between the cover 15 and the neck 11. The central portion 17 of the cover 15 is pressed inwardly forming an hexagonal configuration. A vertically disposed pin 18 is rigidly secured in the center of the pressed portion in any suitable manner and projects through an oversized aperture 19 formed in the base of a spring retainer 21 that isintegral with an upper cover 20. The upper cover consists of an annular'pressed steel member 22 whose circumferential por tion engages the part of the shell adjoining the aperture 12. The edge of the annular member is pressed inwardly terminating in an annular channel 23. The spring retainer 21 is of a cup shape having an outwardly turned flange 24 which engages the channel and is secured to the annular member.

The chamber, formed by the annular member and the retainer member accommodates a vertically disposed coil. spring 26 whose lower portion rests on the retainer member and whose upper portion is restrained by a washer 27 that is rigidly secured to the upper eX- tremity of the pin 18. Sufficient clearance is provided between the pin 18 and the aperture 19 formed in the retainer member and also between the retainer member and the inner cover 17 to afiord a relativeuniversal movement between'the outer cover and the inner cover. This feature insures an accurate alignment between the shell 13 and the portion of the outer cap which is rested thereon. By forming the recess in the retainer member of a configuration other than circular, any rotary movement imparted to the outer cover is transmitted to the inner cover. Accordingly one is enabled to'secure the inner cover to the neck of the core by rotating theouter cover. 1

In Figure I the inner cover is secured to the neck of the core by means of threads formed on the neck of the inner cover. In Fig. III the inner cover is secured to the neck by means of a so-called bayonet lock comprising a spring member 28 that is secured intermediate its extremities, to the pin 18, the 0nd portion of the spring engaging a cam surface 29 on the inner flange of the neck 11. This enibggii nt requires a movement of the cap itsel which is only a fraction of a revolution to draw the inner cap firmly against the upper extremity of the neck. Both the screw type cap and the cam type cap, illustrated in Figures I and III respectively, are well known in the art and are easily susceptible to the application of the principles of the present invention. For. purposes of manufacture it may be found more convenient to form the channl 23 on the periphery of the retainer member as shown in Fig. III in contrast to that illustrated in Figure I. Other resilient means may be substituted for the springs, the only requirement being that suilicient clearance be provided to permit the outer cover. to adjust itself to the shell.

Although the principles of the invention have been described as they apply to two difiei'ent em bodiments, it willybe apparent to those skilled in the art that the invention is not so restricted but is susceptible to other modifications without departing from its scope and I desire, therefor, that it be limited oiil as indicated in the appended claims.

' claim:

1. The combination with an outer. shell having: an a erture therein and a container disposed wit in the shell including a neck portion adjacent the aperture, of a cap in,- cludeing a cover member adapted to be secured a; theneck, an outer. cover member adapted to enga the shell adjacent the aperture and means or interconnecting said cover members whereby the outer cover is adapted to undergo relative universal movement with respect to theother cover.

2. The combination with an outer shell having an aperture therein and a container disposed within the shell including a neck portion adjacent the aperture, of a cap including a cover member. adapted to be secured firmly'to the neck, an outer cover member adapted to engage. the shell adjacent the aperture and resilient means interconnecting the two covers for permitting universal movement between the covers.

B The combination with a radiator shell having an aperture therein and a radiator core including a neck portion disposed adjacent the aperture in the shell, of a cap in cluding. individual covers for the neck and the aperture in the shell loosely mated with respect to each other, resilient means interconnecting said covers, and means for securing one of said resiliently interconnected 65 covers to the neck of said core.

4. The combination with a radiator shell having an aperture therein and a radiator core including a neck disposed adjacent the aperture in the shell, of a cap including an individual cover for the neck adapted to seal the opening therein and rigidly securable therewith, a second cover adapted to freely engage the portion of the shell adj accnt the aperture, said covers being loosel f mated with respect to each other whereby t M: covers may undergo restricted relative universal movement with respect to each other, the inner cover being rotated by means of said outer cover.

5. A cap for a container, comprising an inner cover adapted to be secured firmly to the container and having a noncircular recess therein. an outer cover resiliently secured to the inner cover adapted to mate loosely with the recess on the inner cover and undergo restricted universal movement with re spect thereto.

6. A double cap for concentric receptacles, comprising an inner cover adapted to be secured firmly to the inner receptacle, an outer cover for engaging the outer receptacle resiliently secured to the inner cover, loosely mating non-circular telescopic members on said covers whereby the inner cover may be actuated by means of the outer cover and a restricted universal movement is bad between said covers.

7. The combination with a radiator shell having an aperture therein, a radiator core, including a neck portion co-operativcly disposed with respect to the aperture in the shell, :1 cover for the core adapted to seal oil said core by rotative movement and having a noncircula'r recessed portion, a closure, for the aperture in the shell having a base portion and adapted to rest freely on the surface of the shell, a protuberance on the shell closure, positioned to mate freely with the non-circular recess and transmit rotary movement therethrough, a vertically disposed pin rigidly secured to the inner cover and projected through an opening in a spring retainer portion of the outer cover and a spring restrained jointly by the upper extremity of the pin and by the retainer portion of the closure.

8. The combination with a radiator shell, having an aperture therein, a radiator core including a neck portion co-opcratively disposed with respect to the aperture in the shell, a cover for the core adapted to seal oii said core by rotative movement and having a noncircular recessed portion, a cover for the aperture in the shell having a spring retainer portion and adapted to rest freely on the surface of the shell, a protuberance formed on the shell cover positioned to mate freely with the recessed portion and permit rotary movement therewith, a vertically disposed pin rigidly secured to the inner cover and projected through an opening in the base. portion of the shell cover and a spring restrained jointly by the upper extremity of the pin and by the base portion of the cover, the clearance between the pin and the aperture in the base and the mating members being sufficient to afiord relative universal movement between said covers.

9. The combination with a radiator shell having an aperture therein, a radiator core, including a neck portion co-operatively disposed with respect to the aperture in the shell, a cover for the core adapted to seal off said core by rotative movement and having a non-circular recessed portion, a cover for the aperture in the shell adapted to rest freely on the surface of the shell, a protuberance formed integrally with the shell cover, positioned to mate freely with the recess and transmit rotary movement therethrough and a spring member interconnecting the covers adapted to maintain the outer cover firmly against the shell portion.

10. In combination with a radiator comprlsmg a core having an apertured neck and a shell disposed over said core and havlng an aperture substantially concentric with the aperture in said neck, a closure member con prising a cap to close the aperture in said shell, and means to seal the aperture in said neck, said cap and said means being resiliently connected together in such a manner as to permit limited universal movement therebetween, and means for securing said closure to said neck.

11. A cap for a radiator, having an inner core and an outer shell, said cap comprising an inner cover member adapted to be secured firmly to the inner core, a second cover member for engaging the outer shell, said second cover being resiliently secured to said inner cover, said covers being formed with interlocking means whereby a restricted universal movement may be had therebetween.

12. A cap for a radiator, having an inner core and an outer shell, said cap comprising an inner cover adapted to be secured firmly to the inner core member, a. second cover adapted to resiliently engage the outer shell and secured to the inner cover, said covers being formed with a loosely mating recess and protuberance respectively whereby a restricted universal movement may be had therebetween.

13. A composite capfor double walled structures, saicl'cap comprising an inner section adapted to be secured firmly to the inner wall of said structure; an outer section for engaging the outer wall of said structure, said sections having interlocking portions; and resilient connecting means whereby one section may undergo relative universal movement with respect to the other section.

In testimony whereof, I aflix my signature.

WALTER s. FISHER. 

